Mercury rectifier



Sept. 20, 1927. 1,643,146

- JpALEXANDER MERCURY RECTIFIER Filed Sept. 18, 1925 Inventor": Johann Alexabndew",

His Attorney. I

Patented Sept. '20, 1927.

UNITED STATES,

PA'TE NT OFFICE.

3011mm ALEXANDER, or znnnnnnonr, BERLIN, GERMANY, nssre won :ro GENERAL ELEOTRIC COMPANY, A CORPORATION OF NEW YORK.

new RECTIFIER Application filed September 18, 1925, Serial No. 57,244, and in Germany October 8, 1994.

My invention relates to the temperature control of mercury rectifiers, and has for its A principal object the provision of an arrangement whereby the cooling fluid discharged from a loaded rectifier is. utilized to maintain an idle rectifier in condition for assuming load without delay. It is well' known'that a cold mercury rectifier cannot be relied upon'to'assume load without delay for .the reason that short circuits are likely to be formed between its anodes. An idle rectifier'is not therefore a real reserve or stand-by for one which is working. On the contrary,'i t is often' If: necessary carefully to heatthe idle rectifier by means of low tension current before it is put into service; In accordance with my in-' vention this diflicult y -'is avoided by utiiizing the cooling medlum discharged from a 20 I loaded rectifier to maintain an idle rectifier at a temperature which prevents the formation of undesirable arcs when its operation I is initiated.

My invention will be better understood 5 from the following descri tion when con- :sidered in connection with t e accompanying drawings and its scope will be pointedout in the a pended claims.

Re erring to the drawings, Fig. 1 shows 30 an arrangement wherein my invention has been embodied; and Fig. 2 shows a modification thereof.

Fig. 1 shows a rectifier 1* arranged to have its tem erature controlled by a medium which 1s supplied ,to its cooling jacket through pipe 2 and valves 3 and 4, and is discharged therefrom to pipe '5 either through valve- 6 or through valve 7, the

cooling-jacket of rectifier Sand a valve'9..

Cooling medium may also be supplied from the pipe 2 through valve 10 directly to the cooling jacket of rectifier 8 and ma be discharged therefrom topipe 5 e1ther through valve 9; or throughvvalveslll and.

With the'valv'es'"3,'- 4', 7 and .9 openthe valves 10, 11 and 6 closed and the rec ifier 1 operating, it is thus possible to utilize the heated medium discharged from the cooling jacket of rectifier 1 to .heat the rectifier .8

when it is idle- Likewise when the rectifier 8 is working and the rectifier 1 is idle, the

. heated medium discharged from the cooling jacket of rectifier 8 may be utilized to heat 4, the cooling jacket of rectifier 1 and this fluid is disc 24 at the proper temperature being and 22 respectively.

The embodiments of-the invention illusthe rectifier 1 by opening valves- 10, 11, 4 and 6 and closing valves 3, 7 and 9.

Fig. 2 shows a rectifier 12 to the cooling packet of which a fluid is supplied from either a pipe 13 or a pipe 14 through a twoway valve 15 and from which this medium is discharged either to pipe 16 through valve 17 or to pipe 18 through a. valve 19; a rectifier 20 to the coolin jacket of which a fluid is supplied from e1t er pipe 13 or 14 through a-two-way valve and from which this fluld is discharged either to pipe 16 through valve 22 orto pipe 18 through a valve 23; and a rectifier 24 to the cooling jacket of which a fluid is supplied from e1ther pipe 13 or 14 valve 25 and from which arged either to pipe 16 through valve 26 or to valve 18 through pipe 27. It will be observed that the pipe 13' through a two-wag is connected to a storage tank 28 and that trated and described herein have been selected for the purpose ofclearly setting forth the principles'mvolved. It will be apparent, however, that the invention is susceptible of being further modified tomeet the different conditions encountered in its use and I. therefore aim to cover b the appended claims all modificationswithin the true spirit and scope of my invention.

' 7 What I claim as new and desire to secure by Letters Patent of the United States is:-

' 1. The method of controlling the tempera tum of loaded and unloaded mercury recti-' fiers which consists. in utilizing the heat produced by operation. of the loaded rectifier to maintain the unloaded rectifier at a temperature ermitting it to be put into operation wit out delay.

2.- The method of controlling thetempeb' ature of loaded and unioaded rectifiers proaided with cooling jackets which consists in supplying a fluid to the'cooiing jacket of the loaded rectifier, and transmitting said fluid therefrom through the cooling jacket of the unloaded rectifier.

3. The combination of loaded and unloaded rectifiers provided with cooling jackets, means for transmitting a coolin medium to the cooling jacket of the loade rectifier, and means for transmitting said rota-iota medium therefrom to the cooling jacket of the unloaded rectifier.

t. The combination of a pair of rectifiers each provided with a cooling jacket, means for transmitting a cooling medium to said. jackets, and means't'or causing said cooling medium to be transmitted through either of said jackets to the other of said jackets.

In Witness whereof, I have hereunto set my hand this 29th day of August, 1925.

JOHANN ALEXANDER. 

